1. Changing composition of milk and carly devclopmcnt of appetitc;Hall, B.;Lancet,1975
2. A boy born in June 1981, the fourth child of unrelated French parents, was transferred to this hospital aged 3 days. His brothers had died as neonates-two from congenital malformations with no hyperammonaemia and one from ornithine transcarbamylase deficiency. His mother is asymptomatic but her serum ammonia and urine orotic acid concentrations rose abnormally on protein challenge. Jejunal biopsies in both parents showed normal ornithine transcarbamylase activity